Device for indicating the ages of persons



3 Sheets Sheet 1.

(No Model.)

G. C. TEWKSBURY.

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Patented Sept. 2, 1890.

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UNITED ASTATES PATENT OFFICE.

GEORGE C. TEWKSBURY, OF NEV YORK, N. Y., ASSIGNOR TO O. C. SMITH, OF BRIDGEPORT, CONNECTICUT.

-DEVICE FOR INDIGATING THE AGES OF PERSONS.

SPECIFICATION forming part of Letters Patent No. 435,718, dated September 2, 1890.

Application filed April 28, 1890.

' and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention pertains to registering de.- vices, but more particularly has reference to a device for indicating the age of a person, and has for its object to provide a simple contrivance, which, by proper manipulation, as will be hereinafter fully set forth, will indicate a given number.

In the accompanying drawings, Figure l is -a front elevation of my improvement embodied in the construction of a fan; Fig. 2, a detail face view of the rotary disk; Fig. 3, a vertical section of the construction shown at Fig. 1, the handle 'of the fan being broken away; and Fig. lea rear view of my improvement.

Similar letters denote like parts in the several figures of the drawings.

Ais a disk, preferably of thin bristol-board, and having printed upon its face tabular columns of figures, such as are commonly used in age-registering machines. The scheme of these tables is old and well known and of course forms no part of my invention.

B is a disk, also of thin bristol-board, and pivoted so as to revolve freely by a pin a, which extends freely through the handle C and disks A B.

b is a pin,by means of which the disk A is secured as against rotation to the handle.

c, c', c2, slots within the disk A and respectively opposite to the aforesaid columns of figures. These slots are of a predetermined length, and each succeeding slot is longer than the slot immediately preceding. The rotary disk B is erforated in arcuate concentric series d d d2 d4 d5,\vhich series register, respectively, through the slots c c c2 c3 c4 c5. Another feac3, c", and c5 are arcuate concentric Serial No. 349,707. (No model.)

ture of these'perforations is 'that they extend in radial lines from the center of revolution a.

Near the edge of the disk B are figures and numbers O, l, 2, 3, 4, dac., up to the highest number to be found in the tabular columns, said numbers being registered through an opening D in the disk A.

The operation is as follows: The disks being in such relative position that 0 registers through the opening D, the columns are inspected to ascertain where a selected number appears, and a pin is inserted within the perforation which appears opposite and in close proximity to the columns in which the selected number appears. The pin is then moved from left to right throughout the length of the slots, thereby causing thedisk B to revolve. After the pin has been successively inserted through the said perforations and manipulated, as set forth, the selected number will appear through the opening D.v

For example, take number 35, which appears in the first, second, and sixth columns. The pin is placed in the extreme left-hand perforation through the slot c, and then moved toward the right as far as the slot will permit. The pin is then removed and placed in the extreme left-hand perforation through the slot c and similarly operated, and in like manner said pin is operated through slot c5. The result of the above-specified manipulations of the pin is that the disk B is turned so that the selected number 35 will appear through the opening D.

The rationale of my improvement is very simple and will be readily understood, perhaps, without any further explanation; but I will, nevertheless, set forth, somewhat in detail, the following scheme in accordance with which my invention operates.

The numbers on the rotary disk B run in sequence froml to G3. The slot c is of such length that the turning of said disk by the pin, as aforesaid, is limited to the space occupied by one of said numbers. In other words, said slot permits of the rotation of the disk only throughout the space occupied by one number, and the numbers are therefore caused to register through the opening D in sequence one by one whenever the disk is thus turned. The slot c. permits of the turning of said disk twice as far as does the slot c; the slot c'2 permits of the turning of said disk twice as far as does the slot c', and so onthat is to say, the extent of space throughout which said disk is turned through the limiting-slots c 'c' c2 c3 c4 c5 is in the geometrical progression 1 2 4t 8 16 32. Hence to register the number 85, it will be seen that the disk must be turned thirty-five spaces, and by operating with the pin through the slots c, c', and c5 the disk will be turned one, two, and thirty-two spaces, or an aggregate of thirty-iive spaces. It makes no difference through which slot the pin is rst operated, as

the result is the same whatever order of slots is followed.

0n the back of the disk B is aprojection E, which abuts against the handle and operates as a stop whereby said disk may be readily brought to normal position.

I have shown my improvement embodied in the form of a fan merely for the sake of convenience and serviceableness, and I do not therefore Wish to be circumscribed by any of the features of a fan, the gist of the invention resting in the idea of the pivoted disks constructed to operate as above set forth.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a registering device, the combination of the disk A, having the tabulated columns of figures and the arcuate concentric slots of a predetermined length opposite said columns,

the disk B,pivoted to the disk Aso as to turn freely and having numbers in sequence near the edgethereof, and means for revolving the disk B throughout an extent limited by the length of said slots, substantially as shown and set forth.

2. In a registering device, two disks pivoted together at their centers, the one having tabulated columns of figures and arcuate concentric slots of a predetermined length opposite to said columns and the other having numbers in sequence near the outer edge and arcuate concentric series of perforations adapted to register through said slots, substantially as set forth,

In testimony whereof I affix my signature in presence of two Witnesses.

F. W. SMITH, Jr., J. S. FINCH. 

